评分4星，满分5星

由 GoofyFr 发表于 Dec. 5, 2007 · 永久链接

I rarely use extensions for Thunderbird though I do test a significant number of them. I find this one is both obvious to use and efficient, and moreover it reminds me of asking for a return receipt, what I was too lazy to trigger via a menu before.
It will stay in my profile.